Expecting every app to conform with your local relay is in itself a task too. I see what you’re saying though, it probably would be easier for each dev building a mobile client since they could abstract away the storage & retrieval of things, but making a user download 3 apps seems like a bit of a heavy lift don’t you think? 

I’m not 100% decided yet, just making a point. I haven’t built a mobile client.

Would you want a desktop app to work this would too? 3 programs.